Add 1/81 and 3/12
1/81 + 3/12 is 85/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
1/81 = 1 × 4/81 × 4 = 4/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
3/12 = 3 × 27/12 × 27 = 81/324 - Add the two like fractions:
4/324 + 81/324 = 4 + 81/324 = 85/324 - So, 1/81 + 3/12 = 85/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81+3/12 1/81+6/12 1/81+3/24 3/81+3/12 1/81+9/12 1/81+3/36 5/81+3/12 1/81+15/12 1/81+3/60 7/81+3/12 1/81+21/12 1/81+3/84